Light source for photographic color printers

Details Light source for photographic color printers Light source for photographic color printers

1977-10-06

1978-11-07

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Multicolor picture

355 70, G03B 2754, G03B 2776

Patent

active

041242920

ABSTRACT:
A light source including a plurality of different individual lamps providing primary colors. A mirror which selectively reflects is associated with each lamp. The mirror reflects the corresponding primary color through a filter into a color mixing chamber which provides light having predetermined color composition. A photocell sensing system senses the light in the mixing chamber to provide electrical signals corresponding to the intensity of each color. The signals are employed in a color composition control system for controlling the intensity of the individual light lamps.

REFERENCES:
patent: 3120782 (1964-02-01), Goddard et al.
patent: 3371575 (1968-03-01), Simmon
patent: 3482915 (1969-12-01), Corley
patent: 3488117 (1970-01-01), Weisglass
patent: 3492070 (1970-01-01), Zahn
patent: 3630609 (1971-12-01), Clapp et al.
patent: 3684371 (1972-08-01), Weisglass et al.
patent: 3897147 (1975-07-01), Simon

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